Myntra.com — Company not providing replacement even in replacement period

I have ordered one loafers but due to size mismatch I have requested for replacement with proper size and by today courier man came at my house and after checking of previous delivered item and refused to replace with reason that the Company Price Tag was not found on previous delivered item.

I received previous delivered item without price tag I have also explain this to delivery man and he also spoken with his supervisor Mr.Chirag but both are not agree for exchange/replacement. I have much requested to this person that the company not provided price tag with delivered item. You can ask your company and take confirmation but they didn't heard my request and not delivered my item.